Circuits
Three things and how they get in each other's way: voltage pushes, current is what flows, resistance is what makes flowing hard. That alone lets you read the only two arrangements there are. In series everything goes down the same path, so a break at one point turns everything off — those are old Christmas lights. In parallel each one has its own path, so one bulb can blow and the rest carry on — that is the wiring in your house, and it is why switching off the kitchen does not switch off the living room.
Where this sits
- Comes after
- Quantities
Exercises from this rung
Generated by the app, from easiest to hardest
you add bulbs and the rest are just as bright
- In parallel
- In series
- With a switch in between
- To two separate batteries
Why Every branch gets the full voltage, whatever happens in the others.
easieryou switch off the kitchen and the living room stays lit
- In parallel
- In series
- With a switch in between
- To two separate batteries
Why Each circuit in the house hangs off the board on its own.
in betweenone blows and they all go out
- In series
- With a switch in between
- In parallel
- To two separate batteries
Why They all share one path: wherever it breaks, it breaks for all of them.
harder